42 New Mineral from Sussex County, New-Jersey. 



As this mineral neither agrees in external characters nor 

 chemical constitution with any other compound of Cerium, 

 that has been hitherto described, I have little hesitation in 

 announcing it as a new ore of that metal. It appears to pos- 

 sess the nearest analogy in its composition with the Allanite. 

 This last, by the analysis of Thompson, quoted in Macneven's 

 edition of Brande's Chemistry, has, in 50 parts, 



Silex 15.80 



Oxide of Cerium ♦ . . 15.13 



Alumine 1.83 



Protoxide of Iron . . . 11.34 



Lime 4.11 



Water 1.79 



50.00 

 It' my surmise in this respect be true, I should propose to 

 name it the Ton-elite, in honour of my friend, Dr. John 

 Torrey, to whom mineralogical science is under many im- 

 portant obligations, and to whom this tribute is fairly due, 

 as it is to his nice tact in the management of the blow- 

 pipe that the discovery of Cerium in the substance is to be at- 

 tributed. 



Examination of the Acid of the Rhus Glabrum, with Ob- 

 servations on the Juice of the Sambucus Canadensis, as 

 a delicate test. By Issachar Cozzens, Manufacturing 

 Chemist. Read October 6, 1823. 



The berries of the sumach (Rhus Glabrum) ripen in the 

 month of November, forming large clusters of a bright red 

 colour. These have been long known to yield a powerful acid, 

 which is sometimes used by the country people for medicinal 

 purposes, or as a substitute for lemons to make a pleasant beve- 

 rage. It is also extensively used to convert cider into vinegar. 



